進給閥 的英文怎麼說
中文拼音 [jìngěifá]
進給閥
英文
feed valve-
Therefore the output magnetic torque of torque motor can be increased. in this paper, mathematical model of hydraulic flapper - nozzle servo - valve is introduced. the mathematical model of magnetic fluid is built according to the reference introduction
本文給出了噴嘴擋板伺服閥的數學模型,對作用於伺服閥力矩馬達的磁流體數學模型進行了推導,給出了添加磁流體的噴嘴擋板伺服閥的數學模型。Compound quick air inbreathe - release valve for water supply pipeline
給水管道復合式高速進排氣閥One opened seam, one blown valve, and his life would be choked out by flooding salt water.
只消出現一條裂縫,爆裂一個閥門,他這條命就會給涌進來的海水收拾掉。Water supplying pipe in front of the coal economizer should be installed with a stop valve and check valve for the factory using boiler of mother tube water supplying
7採用母管制供水的電廠,進入每臺鍋爐省煤器前的給水支管均應裝設截止閥與逆止閥。兩閥應緊接,按水流方向逆止閥在前。Through consulting lots of relevant references, present research of direct drive volume control hydraulic servo system is summarized in this paper, the principle and character of this system are expatiated, the principle of vector control is introduced. at the same time, the mathematical model of ac asynchronous motor is set up based on the vector control theory. the mathematical models of both the pump controlled motor and pump controlled cylinder are set up and simulated in this paper
在查閱大量國內外相關文獻的基礎上,本文綜述了國內外對該系統研究概況,闡述了該類系統原理和特點;闡述了矢量控制的基本原理,並基於這一原理建立交流異步電動機的數學模型;分別建立了泵控馬達系統和泵控缸系統的數學模型,並給出了模擬分析;設計了用於泵控馬達系統的集成閥塊,加工了密閉壓力油罐;針對現有直驅式電液伺服裝置所存在的問題,本文主要針對系統工作過程中所產生的噪音與爬行問題進行了一定的研究。Comparing and analyzing the synchronous control strategy, which brings up the new method to control the double un - symmetry jars proceed synchronously with the combination of proportional valve and servo valve, which forms closed loop control ; basing on the above methods, models are made to get mathematics models of position control system and to analyze system model theoretically by using pid controller, we can realize regulating parameters, minimizing synchronous errors and enhancing the dynamic performances ; the simulink tool box in matlab software is used to imitate the system according to the model, which not only makes the result visual and easy to adjust the parameters in interactive way but also lets us understand the effects of different parameters and optimizes the dynamic properties. the theory of plc control in dshp is discussed after advanced understanding of the system movements. hardware design and general regulation are given on the base of siemens company products s7 - 200 plc
本文根據大量的國內外文獻,對研配液壓機的工作原理及設計結構進行了簡介;對位置同步的控制方法進行了比較分析,提出比例閥和伺服閥復合控制的閉環結構來對非對稱雙缸進行同步控制電液比例同步控制方案;在此基礎上著重對比例閥控非對稱缸建模,最後得到位置控制系統的總體數學模型,從理論上對同步系統動態特性進行了分析,並用pid控制器進行參數整定,減小雙缸同步誤差、提高系統的動態響應性能;其中控制性能的分析藉助于matlab軟體中的simulink工具箱,由已建立的數學模型形成模擬模型,得到可視化的模擬結果,從而利於交互方式下調整參數,了解不同的參數對系統的影響,優化同步系統的動態性能;在深入了解系統的動作特性后,對plc控制研配液壓機的原理進行了探討,針對siemens公司s7 ? 200型plc給出了硬體設計的總體規劃,編制出研配液壓機動作控製程序,在編程中著重研究位移傳感器與plc的通訊、雙缸同步運行的pid控制在plc上的實現及bcd碼撥盤輸入程序的植入問題。And the report has passed the analysis to ionic membrane caustic soda salt refining handicraft, has suggested that controlling a scheme comparatively rationally, calculation and driving force having carried out the ability choosing a type, circulating to the regulating valve on various appearance ( the temperature, pressure, rate of flow, liquid place, component ) supply a problem waiting for aspect to have done one by one also expound
本報告通過對離子膜燒堿一次鹽水精製工藝的分析,提出了較為合理的控制方案,並對各種儀表(溫度、壓力、流量、液位、成分)進行了選型,對調節閥流通能力計算及動力供給問題等方面也都一一作了闡述。Cross feed valve
雙向進給閥Xh rubber slowly - closing cut - off vavle is a new water supply and drainage vavle with full rubber structure, duck - mouthed appearance and functions or positive flow - in and reserve cut - off. according to thrust analysis and calculation as well as different operation mechanism and different rubber products by special processing. all will be open at weak hydraulic pressure is higher, the vavle gate will open more greatly and the water flow is greater. at reserve operation, the vavle gate closes naturally and seals tightly cut - off vavle ; the back pressure is higher, the vavle gate closes more tightly and the seal effect is better. it is used widely in various drainage exit to prevent from pouring backwards and flowing backwards in city planning, water conservancy and sewage disposal etc. it is the ideal productto replace flap vavle
Xf型橡膠緩閉逆止閥是一種全橡膠結構外形呈「鴨嘴狀」 ,具有「正向流入反向逆止」功能的新型給排水閥門產品。它根據受力分析和受力計算,針對不同的工況,採用不同的設計機理,選用不同的橡膠配方,並按特殊工藝製作而成。正向工作時,水由進水口流入,微小的水壓,便能打開閥門,水壓越大,閥門開啟越大,水流量越大。Abstract : this paper apply asme & quot; feed water pump npsh analysis during load rejection & quot; theory to check bfp npsh of zhuhai power plant 700mw units in the condition of vwo and also confirm the calculating result by load rejection test
文摘:利用asme的「甩負荷時給水泵汽蝕余量的分析」理論,校核了珠海電廠容量700mw機組在最惡劣工況即閥全開跳機工況時的給水泵汽蝕余量,並在甩負荷時,進行了試驗驗證。The ids works by two way, misuse detection and anomaly detection, misuse detection flags an intrusion on intrusion signature, this kind of detecting technic can be realized much more easily, and much more accurate, but it can not find some intrusiones that have been disguised or new kinds of intrusion. the anomaly detection can detect in more wide field, anomaly detection can compare new statistic data with average record, then anomaly record will be found, but it ' s more difficult to set a threshold, if the threshold is too big, some intrusion may be put through, if the threshold is too small, the ids will give more false positive alarm, and the threshold will be different with different people or different period, so the ids just simply show us their suspicious record, the administrator or expert will be in duty to analyze this record and give conclusion, the ids give more alarm than it should, leave us more detection record to analyze, and this is a hard work, we can not distinguish an intrusion or not if we analyze only one record, but we can judge if we find the relation among mass detection evidence. in this article, we try distinguish an intrusion using d - s theory ( proof theory ) instead using manual work, the ids will be more helpful and efficient
濫用檢測採用的是特徵檢測的方法,實現較為簡單,判斷的準確性較高,但是不能判斷一些經過偽裝的入侵或特徵庫中尚未包含的入侵,異常檢測能夠根據以往記錄的特徵平均值,判斷出異常情況,但是對于異常到什麼程度才視為入侵,這個閥值非常難以確定,閥值設定的太高,有可能漏過真正的入侵,如果設定的閥值太低,又會產生較高的誤警率,而且這個閥值因人而異,因時而異,因此現在的入侵檢測系統把這部分異常記錄以一定的形式顯示出來或通知管理人員,交給管理人員去判斷,而這些ids系統難以判斷的記錄,如果對每個證據單獨地進行觀察,可能是難以判斷是否是入侵,而把許多先後證據關聯起來,專家或管理人員根據經驗能夠判斷訪問的合法性,本文試圖引入人工智慧中證據理論的推理策略和示例學習方法,代替人工檢查分析,可以提高效率,降低誤警率,並可以對一個正在進行得可疑訪問實現實時檢測,通過搜索及時判斷,及時阻斷非法訪問,比事後得人工處理更有意義。The method also can be used to detect oil pollution degree. then the mcu based intelligent two - wire valve hardware design is studied. a hardware platform combining mcu, cebus and power - line communication module is described, and several technical issues are discussed and their practical solutions are provided
隨后,論文對基於mcu的智能二線閥單元模塊的設計進行了深入研究,提出了mcu 、 cebus現場總線、電力線載波通訊模塊相結合的智能二線閥單元模塊系統構架,並對一些具體的技術難題作了實踐性研究,給出了解決方案。At the beginning of this article, we give the analysis about the principle of external condensation. we find out that the most important factor in the condensation is the temperature of the air in the system. and we point out the factors which can make influence in the external condensation, such as the temperature and the humidity of the environment, the temperature and the pressure of the supplying air, the load of the system, the area of passage of speed control valve, and so on. next, we give the mathematics model of the pneumatic system using the knowledge of aerodynamics and heat transfer theory. and using the finite difference method and the numerical analysis we can get the solutions of the model. we use c program to simulate the model
本文首先對氣動系統外部結露的原理進行了分析,指出了氣動系統內部氣體溫度下降是氣動系統外部結露根本原因,提出了影響氣動外部結露的主要因素,包括環境溫度、環境濕度、供氣壓力、供氣溫度、氣缸負載和調速閥開度等。然後應用氣體動力學、氣體熱力學和傳熱學對氣動系統建立數學模型,用逆步進有限差分法和數值分析演算法對所建模型進行求解,利用c語言編製程序對氣動系統模型進行模擬,給出了氣管及氣缸內氣體的各個時刻的狀態參數。In the event said inspection discloses to nibco inc. ’ s satisfaction that said valve is defective, a replacement shall be mailed free of charge to the owner, and nibco inc. shall further pay the installing contractor the sum of fifty dollars ( $ 50. 00 ) to be applied toward the cost of installation of the replacement valve
如果所稱的檢驗結果經過美國尼伯科確認,表明所稱的閥門確實有缺陷,則美國尼伯科公司將免費郵寄一個更換件,並進一步支付五十( 50 )美元作為閥門安裝費用給用戶。The mechanism of the vibration mitigation for the additive energy dissipating equipment is given out. the vibration mitigation equipment is designed. the numerical analysis for the effect of the additive energy dissipating equipment of pipeline system and the pole is processed
給出了附加耗能減振構件(裝置)消除振動的機理,設計了泵站管系減振和閥桿減振裝置,進行了管系和閥桿附加減振耗能裝置消振效應的數值模擬分析。The authors carry out data collection and calculation for fuel injection pressure and needle valve lift signals measured on the fuel pump test bed by using self - developed software. on the basis of experiments, four criteria for analysing fuel injection process are proposed and the comparison of performances between au and nu type fuel outlet valves is made
作者用自行開發的軟體對在油泵試驗臺上測得的噴油壓力、針閥升程信號進行了數據採集和計算,在試驗的基礎上提出了分析噴油過程的四個判據,給出了au型和nu型出油閥的性能比較結果。During the performances of the syt - i servo valve overlap hydraulic measuring platform, the pressure difference between the exit and the entrance keeps changing, which causes comparatively great principle error in the measurement and affects the accuracy of the measuring system
在syt - i型伺服閥疊合量液動測量臺進行伺服閥疊合量的測量過程中,閥入出口壓力差變化給疊合量的測量帶入較大原理性誤差,影響了測量系統的精度。After analyzing the performance of lpg, this paper provided an electronic controlling lpg fuel supply system to fulfill the function of dual fuel on the diesel engine. the system use the philip 87c552 single - chip microprocessor as the cpu of the electronic control unit, with high speed valve as injector. the hardware development was discussed in detail in the paper
本文在對lpg性能進行介紹分析的基礎上,開發了一套電控lpg燃料供給系統,實現了原柴油機的雙燃料運行;系統中的lpg供給採用高速電磁閥,系統控制硬體以飛利浦p87c552單片機為核心,配合合理的輸入輸出介面電路。Characters including : fuel atomization device replaced by gas sprayer, gas supply controlled by gas flux valve ; separate fuel supply from combustion - supporting air, regulate air supply through changing the electioneering voltage to make the fully burning and improve efficiency and reduce fuel consume ; arts and crafts are simple, the modification of the oil heater ' s configuration is little and the heating power is not below the oil heater ' s level ; because of falling the voltage of electioneering, greatly descend the noise of the sample machine compared with the original
其特點是:以燃氣噴頭替代原機燃油霧化裝置;以燃氣流量控制閥控制燃氣的供給;燃氣的供給與助燃空氣的供給相分離;通過改變主電機的電壓,調整空氣的供給量,使燃燒更加充分完全,並進一步提高了熱效率,降低了燃料消耗;工藝簡單,對原機型改動較小;樣機的加熱功率不小於原機型水平;此外,由於主電機電壓的降低,使樣機的整機噪聲比原機大大下降。The port labeled as boost port 2 is also a port that will provide access to boost pressure, but it is normally connected to the bypass valve actuator and should be left alone
港口被給貼標簽幫助港口2也是將提供進入的途徑的一港口推進當時壓力,但是它通常連接支路閥門作動器並且應該被單獨留下。分享友人